Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6691712 | Hair dye applicator | Lorrayne Yen Chu, John De Piano, May Mu | 2004-02-17 |
| 6357449 | Hair dye applicator | Lorrayne Yen Chu, John De Piano, May Mu | 2002-03-19 |
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6691712 | Hair dye applicator | Lorrayne Yen Chu, John De Piano, May Mu | 2004-02-17 |
| 6357449 | Hair dye applicator | Lorrayne Yen Chu, John De Piano, May Mu | 2002-03-19 |